/*
 * Copyright 2023 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.camera.camera2.pipe.integration.compat.quirk

import android.hardware.camera2.CameraCharacteristics
import android.os.Build
import androidx.annotation.RequiresApi
import androidx.camera.camera2.pipe.CameraMetadata
import androidx.camera.camera2.pipe.integration.compat.workaround.TargetAspectRatio
import androidx.camera.core.impl.Quirk

/**
 *
 * QuirkSummary
 * Bug Id: b/128924712
 * Description: Quirk that produces stretched use cases on all the legacy API 21 devices. If
 * the device is LEGACY + Android 5.0, then return the same aspect ratio as maximum JPEG
 * resolution. The Camera2 LEGACY mode API always sends the HAL a configure call with the
 * same aspect ratio as the maximum JPEG resolution, and do the cropping/scaling before
 * returning the output. There is a bug because of a flipped scaling factor in the
 * intermediate texture transform matrix, and it was fixed in L MR1.
 * Device(s): All the legacy API 21 devices
 * @see androidx.camera.camera2.internal.compat.workaround.TargetAspectRatio
 */
@RequiresApi(21) // TODO(b/200306659): Remove and replace with annotation on package-info.java
class AspectRatioLegacyApi21Quirk : Quirk {
    /**
     * Get the corrected aspect ratio.
     */
    @TargetAspectRatio.Ratio
    fun getCorrectedAspectRatio(): Int {
        return TargetAspectRatio.RATIO_MAX_JPEG
    }

    companion object {
        fun isEnabled(cameraMetadata: CameraMetadata): Boolean {
            val level: Int? = cameraMetadata[CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL]
            return level == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY &&
                Build.VERSION.SDK_INT == 21
        }
    }
}
